Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/06/2024, 11:09

General

  • Target
    bb9d4ebcc754a7e6cb7536b735d85fdf_JaffaCakes118.exe
  • Size 37KB
  • Sample240618-m9fybs1bpc
  • SHA256 850072b510695bd8649daad557e371b869054361e888d1aa4ffa51cf8e8c7c87
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bb9d4ebcc754a7e6cb7536b735d85fdf_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\bb9d4ebcc754a7e6cb7536b735d85fdf_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1904
    • C:\Users\Admin\AppData\Local\Temp\server5.exe
      "C:\Users\Admin\AppData\Local\Temp\server5.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3428
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server5.exe" "server5.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        PID:1076

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        server5.exe

        • Path C:\Users\Admin\AppData\Local\Temp\server5.exe
        • Size 37KB
        • SHA256 850072b510695bd8649daad557e371b869054361e888d1aa4ffa51cf8e8c7c87
        • MD5 SHA1 SHA512 SSDEEP

        memory/1904-0-0x0000000074A32000-0x0000000074A33000-memory.dmp

        memory/1904-1-0x0000000074A30000-0x0000000074FE1000-memory.dmp

        memory/1904-2-0x0000000074A30000-0x0000000074FE1000-memory.dmp

        memory/1904-12-0x0000000074A30000-0x0000000074FE1000-memory.dmp

        memory/3428-13-0x0000000074A30000-0x0000000074FE1000-memory.dmp

        memory/3428-15-0x0000000074A30000-0x0000000074FE1000-memory.dmp